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Storm Prediction Center Mesoscale Discussion 1566

Published Date and Time: 2026-07-09 21:27:00



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Mesoscale Discussion 1566
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   Mesoscale Discussion 1566
   NWS Storm Prediction Center Norman OK
   0820 PM CDT Thu Jul 09 2026

   Areas affected...southwest NE into western KS

   Concerning...Severe Thunderstorm Watch 475...

   Valid 100120Z - 100245Z

   The severe weather threat for Severe Thunderstorm Watch 475
   continues.

   SUMMARY...A threat for severe wind and isolated hail may continue
   through mid/late evening.

   DISCUSSION...A loosely organized QLCS is ongoing at 0105 UTC across
   eastern CO, with measured gusts of 50-70 mph observed over the last
   hour. The downstream environment remains favorable for organized
   convection, with MLCAPE of near/above 1500 J/kg and moderate
   deep-layer shear. Some increase in MLCINH is also underway with the
   onset of nocturnal cooling. As a result, the longevity and
   organization of the ongoing convective line is somewhat uncertain
   into mid/late evening. However, with relatively moist low-level
   easterly flow and somewhat greater downstream moisture/instability
   in place, maintenance of the ongoing line and an eastward
   progression of the severe-wind threat (with localized 75+ mph gusts)
   appears possible into mid/late evening. Isolated hail also remains
   possible with any remaining semi-discrete cells. Downstream watch
   issuance is possible by 9 PM CDT.

   ..Dean/Thompson.. 07/10/2026

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...ICT...GID...LBF...DDC...GLD...

   LAT...LON   41010199 41030116 41050040 40849966 39829913 39259887
               38949893 38259933 37709989 37630032 37590076 37630200
               38010199 39060189 41010199 

   MOST PROBABLE PEAK WIND GUST...65-80 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


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